Marble-veneering



.V'UNIT'ED STATES PATENT OFFICE.

THOMAS C. LAMB, OF CHICAGO, ILLINOIS.

MARBLEV-VENEERING.

SPECIFICATION forming part of Letters Patent No. 225,618, dated March 16, 1880.

Application filed April 28, 1879.

To all whom it may concern:

Be it known that I, THOMAS C. LAMB, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in the Art of Marble-Veneering; and I do hereby declare the following to be a full, clear, and exact description thereof, which will enable others skilled inthe art to use the same.

My invention relates to the art of marbleveneering for covering surfaces of wood, iron, stone, or other material; and it consists in grinding the marble-veneering by means of a solid rubber pad used with pumice-stone and I kerosene-oil; and also in a compound for filling any holes or cracks that may be in the surface, all as hereinafter more fully set forth.

Forv the marble-veneering I prefer to use marble-dust, paris-white, china-clay, barytes, or plaster-paris in equal parts, using any two or more of these articles at any one timeto form a mixture. I mix with a little hot Water, so as to make a very stiff paste. 1 then take glue-water- -one pound of glue to one gallon 2 5 of water, boiling it well before using-and add to the above compound to make it to the cod sistency of cream.

For producing the veins I use any kind of mineral colors mixed with glue-water, introduced as follows: I take a vessel of sufficient size to contain enough of the compound to cover the surface I desire to ornament. Afew drops of each color to be used are first dropped in the bottom of the vessel, and the compound is then pgured into the vessel. The colors will then rise through and through, so as to form beautiful veins of marble as it is poured onto the surfaces of the different substances to be marbleized, which are then set away to dry. To the foregoing compound and process, however, I lay no claim, as I am aware that such is not new.

In the art of marble-veneering it has been found that-the various compounds that are 5 applied either warm or hot will dry off full of pits and holes, caused by the material bubbling up when first applied.

The object of my invention is to fill these holes, in order to get an even and smooth surface and a quick polish.

When the marbleized surfaces are dry, as above stated, they are ready to be ground down to level the surface, which I accomplish by the use of a solid pad of indiarubher and the use of pumice-stone and kerosene-oil, grinding wilh the rubber pad until the surface is perfectly smooth.

To fill any holes or cracks that may be in the surface I use the following compounds, viz: One part very fine plaster-paris and one part whiting, both well pulverized and mixed while in a perfectly dry state. I then add two parts of white shellacvarnish, and one part of kerosene-oil, and form a mixture the consistency of thin cream.

Before applying the prepared filler the surface is covered with a mixture of one part kerosene-oil and two parts liquid shellac. I then rub in well with the hand all the filler that will be taken up by the shellac and oil. This is then allowed to dry or harden, when it is ready to be ground down and polished, which is accomplished by putting on two or more coats of shellac varnish and allowing the same to stand for twenty-four hours or more, and then making the surface smooth. by the use of a rubber pad and pumice-stone.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. As a means for grinding down marbleized surfaces, substantially as described, a solid rubber pad used with kerosene-oil and pumice-stone, substantially as herein set forth.

2. The compound herein described for filling holes and cracks in marble-veneering, consisting of plaster-paris, whiting, shellac, and kerosene-oil, substantially as herein set forth.

THOS. G. LAMB.

Witnesses THOMAS SWARTWOUT,

GEO. W. BISHOP. 

